U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on K2U2O7 by Materials Project
Abstract
K2U2O7 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to six O2- atoms to form KO6 octahedra that share corners with six UO6 octahedra and edges with six KO6 octahedra. The corner-sharing octahedra tilt angles range from 54–59°. There are a spread of K–O bond distances ranging from 2.71–2.83 Å. In the second K1+ site, K1+ is bonded to six O2- atoms to form distorted KO6 octahedra that share corners with six UO6 octahedra and edges with six KO6 octahedra. The corner-sharing octahedra tilt angles range from 53–59°. There are a spread of K–O bond distances ranging from 2.71–2.86 Å. There are two inequivalent U6+ sites. In the first U6+ site, U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with five UO6 octahedra, corners with six KO6 octahedra, and an edgeedge with one UO6 octahedra. The corner-sharing octahedra tilt angles range from 9–59°. There are a spread of U–O bond distances ranging from 1.88–2.32 Å. In the second U6+ site, U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with five UO6more »
- Authors:
- Publication Date:
- Other Number(s):
- mp-29361
- DOE Contract Number:
- AC02-05CH11231; EDCBEE
- Research Org.:
- Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Collaborations:
- MIT; UC Berkeley; Duke; U Louvain
- Subject:
- 36 MATERIALS SCIENCE
- Keywords:
- crystal structure; K2U2O7; K-O-U
- OSTI Identifier:
- 1203710
- DOI:
- https://doi.org/10.17188/1203710
Citation Formats
The Materials Project. Materials Data on K2U2O7 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1203710.
The Materials Project. Materials Data on K2U2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1203710
The Materials Project. 2020.
"Materials Data on K2U2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1203710. https://www.osti.gov/servlets/purl/1203710. Pub date:Sat Jul 18 00:00:00 EDT 2020
@article{osti_1203710,
title = {Materials Data on K2U2O7 by Materials Project},
author = {The Materials Project},
abstractNote = {K2U2O7 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded to six O2- atoms to form KO6 octahedra that share corners with six UO6 octahedra and edges with six KO6 octahedra. The corner-sharing octahedra tilt angles range from 54–59°. There are a spread of K–O bond distances ranging from 2.71–2.83 Å. In the second K1+ site, K1+ is bonded to six O2- atoms to form distorted KO6 octahedra that share corners with six UO6 octahedra and edges with six KO6 octahedra. The corner-sharing octahedra tilt angles range from 53–59°. There are a spread of K–O bond distances ranging from 2.71–2.86 Å. There are two inequivalent U6+ sites. In the first U6+ site, U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with five UO6 octahedra, corners with six KO6 octahedra, and an edgeedge with one UO6 octahedra. The corner-sharing octahedra tilt angles range from 9–59°. There are a spread of U–O bond distances ranging from 1.88–2.32 Å. In the second U6+ site, U6+ is bonded to six O2- atoms to form UO6 octahedra that share corners with five UO6 octahedra, corners with six KO6 octahedra, and an edgeedge with one UO6 octahedra. The corner-sharing octahedra tilt angles range from 9–59°. There are a spread of U–O bond distances ranging from 1.89–2.28 Å. There are seven inequivalent O2- sites. In the first O2- site, O2- is bonded in a linear geometry to two U6+ atoms. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three K1+ and one U6+ atom. In the third O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three K1+ and one U6+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three K1+ and one U6+ atom. In the fifth O2- site, O2- is bonded in a trigonal planar geometry to three U6+ atoms. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to three U6+ atoms. In the seventh O2- site, O2- is bonded in a distorted rectangular see-saw-like geometry to three K1+ and one U6+ atom.},
doi = {10.17188/1203710},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}